Steadicam arm front section complete.mp4

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This is my 3A "Steadicam" arm I designed and built with help from homebuiltstabilizers.com. The arm is built from 6061 aluminum. Only the front section of the arm is complete. The rear section still needs springs, spring plugs, and cable. This video shows 10 lbs on weight on the end. My sled weighs 9.65. My calculations were spot on in regards to spring selection. The force required to move the arm section from horizontal to full boom up and down is very very low. I would say in the front section of this arm isoelastic performance has been achieved.
Note that the kydex arm guard has been removed for this video.

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8 сен 2024

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Комментарии : 14

@gearheadmachineworks2679 11 лет назад

Cage thanks so much for the kind words. The spring adjustments exist at the top and bottom springs. Take for instance the top spring. If you look to the end of that spring at the right there is a long screw running throguh the middle of it. This screw is running through a tapped hole at the center of the spring plug. This screw's hex head is sitting on the other side of a little bracket situated on the main arm frame. You rotated the screw head and give more or less tension in the spring.

@CAGESYLER1970 11 лет назад

Dude, you are a rock star. Beautiful workmanship.

@GEARHEADNEILL 12 лет назад

Yes. They are radial bearings. I used cantilevered shafts that are screwed into the C-channels. The bearing are a tight slip fit into the bores of the "bones" and onto the shafts. Every moving part must use bearings and there must be no "play" either or this will show up in the video. I really should do a proper video detailing exactly how this thing is made now that its 100% complete. It performs better than I could have imagined.

@GEARHEADNEILL 12 лет назад

This is question that took me a long time to figure out. Hours of thinking and math and rethinking. Then I happened on a technique that worked really good for me and hopefully it can work good for you as well. But, the explaination is too long to describe here. I will post it up on homebuiltstabilizers. It will be in the "arms" section. If you dont already have an account I would make one there.

@gearheadmachineworks2679 11 лет назад

Keep in mind that this style arm (3A design) doesn't have capacity to run with a large range of different weight cameras. With this type of arm you design the springs around a target camera weight. With maybe a few pounds +/- of adjustability

@gearheadmachineworks2679 11 лет назад

Cage I am about to tell you something that you probably don't want to hear but listen with an open mind. There is a new development in camera stabilization that pretty much makes existing "steadicam" design obsolete in some respects. Go have a look at the Freefly MOVI. This is what I have moved onto building in DIY. The design is basically a aerial video brushless camera gimbal adapted to a new application. It has many benifits over regular steadicam.

@CAGESYLER1970 11 лет назад

Any chance that you can post your assembly, parts or trials & tribulations videos for your ARM there? Thanks again for posting this vid. I'll be following your lead on fabrication. Any suggestions that you can personally offer would be very welcomed.

@CAGESYLER1970 11 лет назад

Hi Neill. I'm trying to figure out where you've located your spring adjustments to compensate for differently weighted cameras. Oh, and the website you've suggested (that you drew your plans no longer exists, however there are recommended sites that are offered from that site's point and are a wealth of info... so, thanks!) .

@CAGESYLER1970 11 лет назад

Sorry for all the questions. Where are your cables? Are they running through the springs and spring caps?